Set max-width on images in feed, a=chris

diff --git a/css/search.css b/css/search.css
index 6f2812c9a..c12e6cf8a 100755
--- a/css/search.css
+++ b/css/search.css
@@ -2440,6 +2440,11 @@ div.group-result
     margin-right:.8in;
     min-height:.7in;
 }
+.feed-item-body img,
+.feed-item-body video
+{
+    max-width:100%;
+}
 /* Captcha settings styles */
 .captcha {
     padding: 5px;